She continued, "I just find it to be energy that is unnecessary and not really fair for those who may or may not [have children]. Who knows what the reason is, why people aren't having kids. There's a lot of reasons that could be, and maybe it's something that no one wants to discuss."

She added that whether she and her fiancé of two years have babies, it's "everyone's personal prerogative."

Aniston, 45, this week also joined Lisa Kudrow and Courteney Cox on “Jimmy Kimmel Live" for a reunion of sorts for their hit show "Friends," which went off the air in 2004.

The skit was hilarious and Aniston refused to wear "The Rachel" wig Kimmel presented her.